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arXiv 1005.3202math-phcond-mat.stat-mechmath.MP
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关于Halten-Shastry型自旋链的能级密度

On the level density of spin chains of Haldane--Shastry type

A. Enciso, F. Finkel, A. Gonzalez-Lopez

摘要:

我们提供了一个严格的证据,证明与A_{N-1}根系相关的所有Haldane-Shastry类型的su(m)自旋链的能级密度随着自旋数N趋于无穷大而接近高斯分布。我们的方法是基于对能级密度的特征函数的大N极限的研究,使用图案和色散关系的渐近行为方面的频谱的描述。

英文摘要:

We provide a rigorous proof of the fact that the level density of all su(m) spin chains of Haldane-Shastry type associated with the A_{N-1} root system approaches a Gaussian distribution as the number of spins N tends to infinity. Our approach is based on the study of the large N limit of the characteristic function of the level density, using the description of the spectrum in terms of motifs and the asymptotic behavior of the dispersion relation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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